Mirrorclones - Synchronized - HP 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure User Manual

IMPORTANT:
When using jobs you must explicitly ensure that write caches are flushed.
Method
GUI action
Job
Fracture for disk group failure
In the unusual event that a source virtual disk with a mirrorclone experiences a disk group failure, the
mirrorclone is automatically fractured by the array. After the failure is corrected, the source can be
restored from the fractured mirrorclone.
The mirrorclone feature is controller software version dependent. See
controller software features - local

Mirrorclones - synchronized

Mirrorclone replication establishes and maintains a copy of an original virtual disk, via a local replication
link. See virtual disk types.
source
When first created (and whenever resynchronized by an action or command), a mirrorclone is said to
be synchronized. In a synchronized state, the mirrorclone is automatically updated whenever its source
virtual disk is updated. See also mirrorclone states and
Task summary for synchronized mirrorclones
Synchronized mirrorclones
Deleting
Detaching
Fracturing
Presenting
Replicating - snapclones
Replicating - snapshots
Restoring
Resynchronizing
See also general
Benefits of separate disk groups
Mirrorclones created in a separate disk group than their source provide the following benefits:
Flush implementation
The replication manager automatically
sets the source disk to write-though
mode and ensures the flush is completed
before starting the fracture.
You must include job commands to set
the source disk to write-through mode
and wait for the flush to complete before
starting the fracture.
replication.
===========>
local link
No. The disk must first be fractured and detached, then deleted.
No. The disk must first be fractured, then detached.
Yes.
Yes. The disk can immediately be presented to hosts for I/O.
No. The disk must first be fractured, then presented.
No. The disk must first be fractured, then replicated.
No. The disk must first be fractured, then used to restore.
Not applicable.
mirrorclone guidelines
Write cache setting after replication
When the fracture is completed, the controller
software automatically sets the source disk and
mirrorclone to write-back mode.
If you want the source disks or mirrorclones to be
in write-through mode, you must explicitly set them.
mirrorclone
(synchronized)
fractured
and mirrorclone FAQ.
HP StorageWorks Replication Solutions Manager 4.0.1
mirrorclones.
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